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parse.HostPortorFile: return error when 0 found (#3742)

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* parse.HostPortorFile: return error when 0 found

Return an error when we haven't found any nameservers. This is the
alternative considered in #3735. It's also slighly less code to be
changing.

Replaces: #3741
Closes: #3741 #3735

Signed-off-by: Miek Gieben <miek@miek.nl>

* Add extra test case here as well

Signed-off-by: Miek Gieben <miek@miek.nl>
This commit is contained in:
Miek Gieben
2020-03-13 14:23:10 +01:00
committed by GitHub
parent 68ddba05da
commit c52a51fac8
3 changed files with 13 additions and 0 deletions
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3
plugin/pkg/parse/host.go
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@@ -69,6 +69,9 @@ func HostPortOrFile(s ...string) ([]string, error) {
}
servers = append(servers, h)
}
if len(servers) == 0 {
return servers, fmt.Errorf("no nameservers found")
}
return servers, nil
}